The Science of Crinkling Wrapping Paper

Why does wrapping paper make that addictively crisp crinkle sound when you squeeze it?

It’s not just noise, your brain actually finds that sound rewarding.

Wrapping paper is stiff, thin, and full of microscopic creases that

snap when bent. It’s similar to crunching dry leaves. The structure breaks in quick bursts.

Each crinkle releases a fast series of tiny “ pops” that blend into that classic holiday

sound. Your brain links this sound with gifts, anticipation,

and childhood memories, boosting dopamine. Even the coating matters. Glossy paper creates

sharper snaps than matte finishes. So the crinkle comes from snapping fibers,